Because it utilizes SPDT switching

Enhanced Diagnostics: Dual LED indicators for network and relay status allow for immediate verification of command execution

and many other series

Key Benefits: Direct OEM Fit: Drop-in replacement for the York S1-024-34550-002

Armstrong International 811-3/4-70 Trap Els PW 17895 Because it utilizes SPDT switchingThe Armstrong International 811 3 4 70 Trap is a high performance inverted bucket steam trap designed for exceptional energy efficiency and longevity in industrial steam systems. Engineered with a rugged cast iron body, this Series 811 model features a 3 4" NPT connection and a precision lapped 5 32" orifice, optimized for a maximum operating pressure of 70 PSI. Its unique leverage system and bottom in top out configuration ensure reliable condensate